Liquid crystal composition and liquid crystal display device
a liquid crystal composition and display device technology, applied in liquid crystal compositions, chemistry apparatus and processes, thin material processing, etc., can solve the problems of large contrast ratio of the device, short service life of the device, and small electric power consumption
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example 1
[0093]
5-HBB(3F)B-2(1-1)4%5-HBB(3F)B-3(1-1)4%3-H2B(2F,3F)-O2(2-2)10%3-H2B(2F,3F)-O4(2-2)7%5-H2B(2F,3F)-O2(2-2)10%3-HH2B(2F,3F)-O2(2-4)10%4-HH2B(2F,3F)-O2(2-4)9%5-HH2B(2F,3F)-O2(2-4)9%3-HBB(2F,3F)-O2(2-5)6%5-HBB(2F,3F)-O2(2-5)4%3-HH-V(3-1)27%NI = 90.9° C.; Tc ≦−30° C.; Δn = 0.101; Δ∈ = −3.3; η = 23.6 mPa · s; VHR-1 = 99.1%.
[0094]The composition of Example 1 had a negatively large dielectric anisotropy, a low minimum temperature of a nematic phase, a high maximum temperature of a nematic phase and a low viscosity as compared to the composition of Comparative Example 1.
example 2
[0095]
5-HBB(3F)B-2(1-1)6%3-H2B(2F,3F)-O2(2-2)23%5-H2B(2F,3F)-O2(2-2)23%3-HHB(2F,3Cl)-O2 (2-13)3%5-HHB(2F,3Cl)-O2 (2-13)3%3-HBB(2F,3Cl)-O2 (2-17)7%5-HBB(2F,3Cl)-O2 (2-17)3%3-HH-V(3-1)18%3-HH-V1(3-1)8%3-HHEBH-3(—)3%3-HHEBH-5(—)3%NI = 69.9° C.; Tc ≦−20° C.; Δn = 0.092; Δ∈ = −3.1; η = 21.6 mPa · s; VHR-1 = 99.0%.
example 3
[0096]
5-HBB(3F)B-2(1-1)5%3-H2B(2F,3F)-O2(2-2)30%5-H2B(2F,3F)-O2(2-2)30%3-HH-V(3-1)10%3-HH-V1(3-1)5%3-HHEBH-3(—)8%3-HHEBH-4(—)6%3-HHEBH-5(—)6%NI = 72.0° C.; Tc ≦−20° C.; Δn = 0.086; Δ∈ = −3.4; η = 22.2 mPa · s; VHR-1 = 99.1%.
[0097]The composition of Example 3 had a negatively large dielectric anisotropy and a low viscosity as compared to the composition of Comparative Example 1.
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